Title

Problem Scenario

This question is worth asking because some might not know the effect of plant growth while using ultraviolet light.

Broad Question

What is the effect of ultra violet light?

Specific Question

What is the effect of ultraviolet light on plant growth?

Hypothesis

I believe that when the ultraviolet light hits the seeds they would have more of an effect on the plant growth of the winter rye seeds.

Graph of Hypothesis

Variables

Independent Variable:

Ultra Violet light

Dependent Variable:

Plant Growth

Variables That Need To Be Controlled:

18ml or water
5 seeds in each plastic bag

Vocabulary List That Needs Explanation

Ultra Violet light

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General Plan

I will take 5 seeds and put them on a paper towel that has been soaked in 18ml of water.
Then I will put the paper towel into a Hannahford recloseable storage bag and label 4 bags U.V.C. and the other 4 control.
Everyday I will put the four U.V.C. bags into a compartment that when programed gives off ultra violet light for 14 minuets a day.
Once both U.V.C and the Control seeds have sprouted then I will start by measuring each individual seed in each of the bags.
Then I will record the measurements in a data table.

Potential Problems And Solutions

Safety Or Environmental Concerns

Experimental Design

Controlled, manipulated experiment

Number Of Trials:

Four

Number Of Subjects In Each trial:

Five

When data will be collected

Number of Observations:

4

Where will data be collected?

On a Google Docs Spreadsheet

Resources and Budget Table

Poster Board- $5.99

Data Table

Time Line

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Background Research

1. There is evidence that extended exposure to U.V. lighting has harmful unexpected effects on the skin, eyes and your Immune system.
2. Clouds reduce the UV levels, but not completely. It all depends on the thickness of the cloud overhead. You can still get a burn even on a cloudy day even if it does not feel warm

References

1. www.medindia.net › Consumer Health › Health Information
2. http://www.epa.gov/sunwise/doc/uvradiation.html
3. science.hq.nasa.gov/kids/imagers/ems/uv.html

Detailed Procedure

1. I will take a wet paper towel put 5 seeds ontop
2. Then I will put them into 4 separate Ziploc bags and seal them tight
3. Then for 14 minuets a day 4 bags will go under a U.V.C light.
4. When the Ultraviolet treatment has ended I will measure each of the seeds in the 4 bags
5. Then I will get the averages of each bag and record the data in a 'Google Docs Spreadsheet'
6. Then I will repeat steps 4 and 5 for the 'Control' bags as well

Diagram

Photo List

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All Raw Data

3/27/12

Treatment Bag	1	2	3	4
Control	4.3	5.56	6.84	3.82
U.V.C	1.18	1.86	1.18	0.98

3/29/12

Treatment Bag	1	2	3	4
Control	6.54	6.48	11.3	6.38
U.V.C	1.48	5.2	0.86	1.04

Graphs

Photos

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Data Analysis

Conclusion

Observations

1. After 2 trails I started to notice mold growing on the plants.
2. There was more mold growth on the seeds that were put under a U.V light for 14 minuets than there was on the seeds left out at room temperature.
3. The control seeds were growing at a much faster pace than the U.V.C seeds
4. After 2 trials I started to notice that the U.V.C seeds were starting to burn- Meaning turn black

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Discussion

Benefit to Community and/or Science

Abstract